Rifle construction.



PATENTED SEPTill, 1906.

C. HAMILTON. RIFLE CONSTRUCTION.

APPLICATION FILED SEPT.18, 1905.

Magne s PATBNTED SEPT. 11, 1906. G. HAMILTON. RIFLE CONSTRUCTION.

APPLIOATION FILED SEPT. 18, 1905.

2 SHEETS-SHEET 2.

wprrqgsW INVENTOR co m 1m UNITED STATES- PATENT orrron coELLo HAMILTON, or. PLYMOUTH, MICHIGAN.-

RIFLE CONSTRUCTION. i

- act description the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference be' had to the accompanying drawings, whic form a part ofthis specification.

My invention relates-to an improvement in rifle construction, and is shown in the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is a longitudinal sectional view. Fig. 3 is a longitudinal section showin the-construction of the reciprocatingbreechlock and lunger. Fig. 4 is a cross-section on line X Fig. 5 is a crosssection on line Y Y. Fig. 6 is a cross-section on line Z Z. Figfl is a cross-section on line U U. Fig. 8 is a cross-section on line WW. Fig. 9 is a plan View of the lower side of the rear portion of the false barrel with a portion broken away to show the construction. Fig. 10 is a fplan view of the upper side o the sections orming the rear end of the barrel proper. Fig. 11 is aninverted plan view of the tubular reciprocable firing-bolt carrier. Fig. 12 is a side elevation of the firing-pin case.

In the drawings, A represents the stock, and B thebarrel. The barrel B is built of several concentric parts. The rear portion of the outer shell or false barrel (represented at B) is formed from a rectangular sheet of metal, with the seam on the lower side, and is provided with an opening at 7) through which to enter the cartridge and discharge the shell. It is also provided with an opening 11 in which is inset the metal piece 6 This metal piece is provided with a lug 6 extending into the barrel, for purposes hereinafter described.

Before rolling up the section B of the barrel the end of the metal strip from which it is formed'that is, to form the endis folded upon itself, so that when the piece is rolled into a tube the fold forms an annular rib or ring 6 on the. inner side of the forward end of the tube. The next interior section 0 of the barrel is made longer than the outer section just described, and the portion that extends forward through the ring 12 and the rear portion that fills the tube B is formed with a Specification of Letters ratentl Application tiled Septembe; 18,1906. Serial No. 278,848-

I atent efl. Sept. 11, 1906.

sheet metal and is provided with an mterior thread into which is screwed the next interior section D of the barrel. Into this section is fixed the final interior rifled sectionE, the rear end of which comes flush with the rear. end of the section D and at the forward end of the opening I) in such a osition that a'oar tridge entered through tile opening 1) W111 reiicIllily enter the breech of. the interior bar-- re a fixed position within the section B by the metal piece I) inset'in B, as described, the lug 1) extending through an o ening b in the side of the section 0, and also y the stem H, as hereinafter described.

rel is open at the top. The inner section'E of the barrel is formed and rifled by the method shown in Patent No. 660,725, dated October 30, 1900, issued 'to Clarence J. and Coello Hamilton. 2 The forward end of the section B is undercut to allow the rear end of the forward ortionF of the outer cover or false barre to enter to conceal the joint. held in place by a short section f, which is threaded town on the forward end of the away on the upper side of the interior barrel and extends through a slot cut from the forward end of the portion F and is held firmly in place by the short section f. Toprevent the sight from lifting out, it'is provided with beveled ends fitting snugly under the abutting parts of the cover F and f.

The means for attaching the barrel to the stock consists of the stem H, having a smaller threaded inner end that screws into a screw threadedhole h in the section C ofthe barrel, through the inset piece 6 and througha 0on cave metal plateh, the shoulder of the gteu, drawing the parts firmly together when the stem is screwed to place and firmly screwing ortion of the barrel to the outer section The stem H enters a hole in the stock the key 7L2 screws into the stem entering from the outsideof'thestock through'the bushing the. parts together.

The section 0 to the rear of the inner bar-.

This cover-F is the inset piece in place and also looking the with which ahead thereon "engages to hold shoulder li to engage the ring. The portion C of the barrelis also formed from a lece of.

. The sections 0, D, and E ararigidly held in interior barrel. p Y

The forward sight G rests upon a seat cut provided with a bushing in its outer end, and

The firing mechanism consists of a tubular it is reciprocated and rotated. v vThistubular carrier is formed from a rectangular, piece of.

metal and a slot 7' is cut alon the scam in which runs a traveler J carrie by the firingbolt K, longitudinally movable in the tube.

The firin -bolt Kextends part waythrough the tube J and is provided with a spiral spring k, operating-against a shoulder on the bolt in the usual manner, and witha -thumbnut k by which the bolt is drawn back and set. The traveler J when the firing-bolt is drawn back comes back of thetrig er 7c, and the bolt is thus held in positionfor ing. As the traveler'rotates with the tube J the trigger will not engage the traveler except when the tube is turne by its handle to bring'the slot in which the traveler moves in line with said trigger, and the tube cannot be rotated from that 'position except when the traveler is opposite the trigger because of the engagement 0 the trigger with the slot.

The firing-pin L is set in a case L, that is en gaged with the tube J through a stem Z. The stem is held in engagement with the tube J by the lug I, that rotates into a channel 1' cut from the side of the longitudinalslot jin the tube. The lug b on the insetlate b projects through the opening Win the arrel C r and also into the slot 1 in the carrier J, as shown in Fig. 6. This lug is also adapted to travel laterally from said slot into the lateral channel j when the carrier is turned, but it' prevents the turning of the carrier [by its engagement in said slot, except when the carrier is at the inner end of its longitudinal movement, when its lateral channel will be opposite said lug. This lug b, engaging the channel j also prevents the carrier from being pulled out and limits its turning. Therefore the movement of the carrier or tube J is a rotation to the left and a longitudinal movement outward and then in the reverse direction. The outward movement is limited b a shoulder 7', cut on the side of the tubeJ, t at comes against the trigger. If it is. desired to take the firing mechanism out entirely, a pressure on the trigger will disengage the same from said shoulder and release it.

The case L is provided with an upward extension l, adapted to travel inthe slot formed by, ltting away the upper side of the section 0 im'e barrel, and a convex plate or slide Z is to travel within the space formed b the slot between the outer section B an said section C. This part of the mechanism is thus prevented from rotating while free to move longitudinally,and the slide l forms a closure for the opening I). The firing-pin reciprocates in this case when driven by the firing-bolt In this case is, ,also inclosed the spring-extractor M, which 'normally'lies on an incline m, formedcnthe inner end of the barrel E, but when the firing mechanism is drawn back to prepare to load the spring-ex tractor catches the head of the cartridge and extracts it.

The trigger mechanism consists of a hollow case N,-p1voted on the in n, which passes through a hole '11, in the lbwer portion of the outer barrel-covering. The edge of the case that is pivoted, as described, is made thin and the trigger is pivoted over it on the same pin n. Inside'of the case N is the spring n, actin against a rear extension of the trigger to ho d it normallyup against the firing mechanism.

The rear extension n of the "case ,N is

forced and held to. the upward limit of its movement by the action of-thespring n and acts as a spring-pressure dog to lock the.

a breech-covering formed with an interior an-,

nular rib at its forward end, the main-barrel covering and the short section of covering adapted to engage with the barrel at the muzzle .to hold the part together, substantially asdescribed.

3. The combination of 'the telescoping breech-tube containing the firing mechanism, arranged to be partially rotated and drawn out, the trigger arranged to limit the distance the reciprocating firing-pin carrier having a.

IIO

non-rotatable connection with the false bar'- rel, the tube J provided with a longitudinal channel and an annular channel, said non-ro- I .tatable firing-pin carrier provided with a traveler to run in the channels in the tube J,

substantially as described.

5. In rifle construction,-the false barrel,

the reciprocating firing-pin carrier having a non-rotatableconnection with the false barre1,the tube J provided with a lon 'tudinal channel and an annular channel, sai non-rotatable firing-pin carrier provided with a trigger,.=substantially as described.

longitudinal channel in the tube J, and the 6.. In rifle construction, the false barrel,

the reciprocating firing-pincarrier having a it can .be drawn out and the trigger-spring non-rotatable connection with the false baragainst the cartridge, substantially as derel and arranged to travel longitudinally to scribed.

fill the cartridge-receiving chamber, the true In testimony whereof I sign this specificabarrel having its breech end forward of the tion in the presence of two witnesses. cartridge-receiving chamber, the tube J hav- COELLO HAMILTON.

7 ing a rotatable connection with the firingin Witnesses carrier, and means operated by the rotation MAUDE SMITH, of the tube J for setting the firing-pin carrier HENRY E. VILLER T. 

